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BSM C-Series AC Brushless Servo Motors

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ABB’s BSM C-series AC brushless servo motors provide industrial motion control machines with an AC brushless servo design with higher inertia - providing an excellent match for equipment requiring higher inertial matching. This motor design offers increased torque in a reduced package size, when compared to the previous series. The results are a torque increase of as much as 50 percent in some models, with a package reduction of 2 in/50 mm.
BSM C-series AC brushless servo motors provide continuous stall torques ranging from 10 lb/in (1.2 Nm) to 1,062 lb/in (120 Nm). Peak torques are three times continuous. BSM C-series AC brushless servo motors provide an economical package best suited for applications with higher load inertias.
The rotor is a time-proven quality design, performing reliably in numerous worldwide applications. BSM C-series AC brushless servo motors are used in equipment such as moving webs, machine tools, packaging equipment, factory automation, material handling, printing converting, food packaging, assembly lines and many other demanding applications.


  • More torque in smaller package than previous designs
  • Acceleration torques from 32 lb/in (3.6 Nm) to 3,186 lb/in (360 Nm)
  • High output torque at low speed – continuous 10 lb/in (1.2 Nm) to 1,062 lb/in (120 Nm)
  • Inertia range .0016 - .038 lb/in2 – 0.57 lb/in2 (1.8 - 42.6 – 644 kg/in2)
  • Standard windings for 160, 300, 600 bus volts- customs available
  • Premium 200° C moisture resistant, multi-coated wire for reliability
  • Extra high insulated stator for high voltage and current spike protection
  • Superior bearing protection with Mobile Polyrex™ EM grease to provide four times greater life
  • Rugged industrial construction to provide quality throughout the design
  • Stock and customs available - IEC/NEMA designs

Common industries

  • Food and beverage
  • Manufacturing
  • Medical
  • Packaging
  • Robotics
  • Semiconductor

Common applications

  • Cut-to-length
  • Flying shear
  • Labeling
  • Machining
  • Material handling
  • Winding

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